Brewers’ spent grain, the biggest waste product in the beer business, is being used in novel ways by scientists and industry.
When you think of a well-brewed beer, ardent drinkers at the very least are likely to picture a pint glass brimming with golden nectar.
The piles of wet, sticky shavings that accumulate as the biggest waste product throughout the beer-brewing process are probably not something people will visualize.
There is an enormous amount of what is called brewers’ spent grain. For every liter of beer that is brewed, about 200g (7oz) are created. About 340 double-decker buses’ worth of weight is created annually, or about 37 million tons, worldwide. Additionally, sales are anticipated to increase as we consume more beer.
